我有以下一段代码我想制作DRYer：
def createAdmin(/* ... */): Future[Int] =
db.run {
{
(users returning users.map(_.id)) += Account(0,/* ... */)
} flatMap { id =>
admins += Admin(userId = id,/* ... */)
}
}
def createStandardUser(/* ... */): Future[Int] =
db.run {
{
(users returning users.map(_.id)) += Account(0,/* ... */)
} flatMap { id =>
standardUsers += StandardUser(userId = id,/* ... */)
}
}
编译好.但如果我将两者合并到以下内容中：
def createUser(role: String)(/* ... */): Future[Int] =
db.run {
{
(users returning users.map(_.id)) += Account(0,/* ... */)
} flatMap { id =>
role match {
case "admin" =>
admins += Admin(userId = id,/* ... */)
case "standard" =>
standardUsers += StandardUser(userId = id,/* ... */)
}
}
}
我收到以下类型不匹配错误：
[error] found : Long => slick.dbio.DBIOAction[Int,slick.dbio.NoStream,Nothing] [error] required: Long => slick.dbio.DBIOAction[Int,E2] [error] } flatMap { id => [error] ^ [error] one error found
我似乎无法弄清楚为什么.有人可以为我照亮这个吗？
